Local Plastic Response and Slow Heterogeneous Dynamics of Supercooled Liquids

Abstract

We demonstrate, via numerical simulations, that the relaxation dynamics of supercooled liquids correlates well with a plastic length scale measuring a particle's response to impulsive localized perturbations and weakly to measures of local elasticity. We find that the particle averaged plastic length scale vanishes linearly in temperature and controls the super-Arrhenius temperature dependence of the relaxation time. Furthermore, we show that the plastic length scale of individual particles correlates with their typical displacement at the relaxation time. In contrast, the local elastic response only correlates with the dynamics on the vibrational time scale.

arXiv commentSupplementary Material included

References in corpus (29)

• Theoretical perspective on the glass transition and amorphous materials
• String-like Clusters and Cooperative Motion in a Model Glass-Forming Liquid
• Scaling behavior in the $\beta$-relaxation regime of a supercooled Lennard-Jones mixture
• Irreversible reorganization in a supercooled liquid originates from localised soft modes
• Identifying structural flow defects in disordered solids using machine learning methods
• Thermodynamic signature of growing amorphous order in glass-forming liquids
• Predicting the long time dynamic heterogeneity in a supercooled liquid on the basis of short time heterogeneities
• The Shapes of Cooperatively Rearranging Regions in Glass Forming Liquids
• Avalanches and Dynamical Correlations in supercooled liquids
• Excitations are localized and relaxation is hierarchical in glass-forming liquids
• Forced motion of a probe particle near the colloidal glass transition
• Mermin-Wagner fluctuations in 2D amorphous solids
• Long Wavelength Fluctuations and the Glass Transition in 2D and 3D
• Direct measurements of growing amorphous order and non-monotonic dynamic correlations in a colloidal glass-former
• Unveiling Dimensionality Dependence of Glassy Dynamics: 2D Infinite Fluctuation Eclipses Inherent Structural Relaxation
• Correlation of Local Order with Particle Mobility in Supercooled Liquids is Highly System Dependent
• Information-theoretic measurements of coupling between structure and dynamics in glass-formers
• Free Volume cannot Explain the Spatial Heterogeneity of Debye-Waller factors in a Glass-Forming Binary Alloy
• Particle jumps in structural glasses
• Anatomy of cage formation in a 2D glass-forming liquid
• Soft modes and non-affine rearrangements in the inherent structures of supercooled liquids
• Long-wavelength fluctuations and anomalous dynamics in two-dimensional liquids
• A localization transition underlies the mode-coupling crossover of glasses
• Observation of strongly heterogeneous dynamics at the depinning transition in a colloidal glass
• Thermal origin of quasi-localised excitations in glasses
• Spatial correlations of elementary relaxation events in glass-forming liquids
• Local Density Fluctuation Governs the Divergence of Viscosity underlying Elastic and Hydrodynamic Anomalies in a 2D Glass-Forming Liquid
• Local elastic response measured near the colloidal glass transition
• Growing length scale accompanying the vitrification: A perspective based on non-singular density fluctuations

Cited by in corpus (5)

• Elasticity, Facilitation and Dynamic Heterogeneity in Glass-Forming liquids
• Solid-that-flows picture of glass-forming liquids
• Relevance of Shear Transformations in the Relaxation of Supercooled Liquids
• Stirring supercooled colloidal liquids at the particle scale
• The Glass Transition: From Competing Theories to Discriminating Tests